Is it better to go for lower NIT'S or universutues like COEP pune,ANNA university in terms of placements,faculty for M TECH in CIVIL ENGG?

I completed my b.Tech CIVIL with 80 percentile.I have written GATE 2014 in CIVIL ,SCORE- 551,RANK3045,CATEGORY-GENERAL.I want to study M TECH CIVIL in OFFSHORE STRUCTURES in NIT CALICUT if not STRUCTURAL ENGG in NIT'S or COEP-PUNEorANNA UNIVERSITY.Please guide me if i could get admission in these?